Casement-window fastener



Dec. 28, 1926. 1,612,555

- T. E. WALKER BASEMENT WINDOW FASTENER Filed p 4, L925 2 Sheets-Sheet 1 mm Aw Zlwuzntoz r l 6 kw W 1 A u mw J 7 mm s 4 v j 4.

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T. E. WALKER CASEMENT WINDOW FASL'ENER Filed Sept. 4 1925 2 Sheets-Sheet 2 abtozwug Patented Dec. 28, 1926.

UNITED STATES 1,612,555 PATENT'OFFICE.

THOMAS E. WALKER, OF DETROIT, MICHIGAN, ASSIGNOR TO 'CRITTALL CASEMENT WINDOW COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

CASEMENT-WINDOW FASTENER.

Application filed September 4, 1925. Serial No, 54,445.

This invention relates to a casement window fastener, and has special reference to that class of hardware used for adjusting a swingable sash, particularly a casement sash pivoted on a vertical axis at one side of the casement frame and adapted to swing outwardly. Various kinds of devices have been employed for swinging such a sash and securing it in adjusted position, and this invention has special reference to such a device that may be readily instaled so as to permit of screens being used in window opening and the device obviates the-necessity of removing the screen when it is desired to adjust the easement sash.

My invention aims to provide, as a new article of manufacture, a simple, durable and inexpensive casement sash fastener that may be used in connection with various kinds of sashes. The fastener is easy to operate, positive in its action and hi my eflicient for swinging a sash and holding it to its swung posltlon.

The fastener is applicable to different types of casement sashes, and will be hereinafterspecifically described' and then claimed, and reference will now be had to the drawings, wherein- Figure 1 is a horizontal sectional view of a casement window provided with a fastener;

Fig. 2 is a detail sectional view of a portion of the fastener;

Fig. 3 is an elevation of the fastener as shown in Fig. 1;

Fig. 4 is a cross sectional view of the ,same;

Fig. 5 is a plan of a fastener illustrating a slight modification of my invention, and

Fig. 6 is a cross sectional view of the same.

In the drawing, the reference numeral 1 de otes a wall having a window opening 2 an mounted in said opening in the usual and well known manner is a frame 3 provided with brackets 4 supporting a swingable sash 5. This sash is adapted to swing outwardly, as indicated by dot and dash lines in Fig. 1, and a screen 6 is at times mounted in the opening 2, at the inner side of the frame 3 so as not to interfere with an outward, swinging movement of the sash 5. v

The frame 3, at the pivoted or hinged side of the' sash 5 is prov1ded with a bracket 7 and pivotally connected to this bracket is a stop link 8 which has its outer end pivotal y connected, as at 10, to the lower face of a slide member 11 on a longitudinally disposed bar 12. said bar being fixed to brackets 13, carried by the bottom rail 14 of the sash The bar 12 is of sufficient length for the member 11 to s'idc thereon when the sash is swung to an open position and the stop link 8 is adapted to limit the swinging moven'icnt of the sash.

The lower rail 15 of the fly screen 6 is provided with an opening or recess 16 and mounted in said opening or recess, on the window sill 7, is a device by which the sash may be adjusted and secured in an adjusted position. The device comprises a comparatively flat circular sill member 18 having a lateral lug 19 and a segment flange 20, said lug and the ends of the flange being apertured so that the sill member 18 may be attached to the sill 17 by screws 21 or other fastening means.

- Loosely mount-ed centrally of the sill member 18, from the lower face thereof is a stud 21 which extends upwardly and is fixed in a pivoted or rotatable head 22 on the sill member. The head 22 is circular and is provided with a radially disposed slot 23 in which is pivotally mounted, as at 24, the inner end of a'lever 25 of suitable configuration to afford a hand grip 26. The lower face of the lever, at its pivoted end is formed with a slotted enlargement or toothed member 27 adapted to engage teeth or notches 28 of the flange 20. The enlar ement or member 27 supports the lever 25 1n a horizontal position by engaging the flange 20 and said lever may be raised to swing the head 22 on its pivot. The lever engages the flange 20 by gravity and secures the rotatable head in adjusted position. Diametrically opposite the lever 25 is a head crank 29 preferably disposed at a tangent to the periphery of the head, and the outer end of this crank is connected to the stop link 8 by one or more connecting links 30. As a result of this operative connection between the device and the sash the lever 25 may be raised and the head 22 1partially rotated to actuate the stop lin 8. One end of this stop link being pivoted and the other slidable relative to the sash 5, said sash can be swung on its pivot or hinge to a desired position and secured in such posi- 'ustin device. It is onlv necessa to arevide the bottom rail 32 of the sash with a guide member or bar 83 which is preferably channel shape in cross section with its lower side open and provided with inturned flanges 34. The upper side of the channel guide member has a longitudinal bead''lz") providing clearance for the pivot 36 be tween a slide member or'chute 37 and the curved end 38 of a crank 39. In this instance, I attach considerable importance to the few arts enter ing into the construction of the tevice, and while in the drawings there are illustrated the preferred embodiments of my invention, it is to be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of'the appended claims.

the notches of said sill member, said lever being pivoted to be swung upwardly free of said notches for pivotal movement of said head, said lever engaging said sill member by gravity to place said lever in engagement with said notches and hold said casement sash in'an adjusted position.

2. Sash operating means as called for in claim 1, wherein the operative connection between said head and the sash includes a sash supported bar, a slide member on said bar, a stop link connected to said member, a

head crank, and a connecting link between said head crank and said step link.

In testimony whereof I afiix my signature.

THOMAS E. WALKER. 

